Serving-hatchway and the like



Nov. 14, 1933- K. o. SCHAUMAN SERVING HATCHWAY AND THE LIKE Filed Oct. 4,' 1930 2 Sheets-Sheet 1 //VVE/V TOR /l. 9/L O, $CHHUMHA/ By J I NOV. 14, K O. HAUMAN SERVING HATCHWAY AND THE LIKE Filed Oct. 4, 1930 2 Sheets-Sheet 2 Patented Nov. 14, 1933' SEBVING-HATCHWAY AND, .THE LIKE KarI-Osten Schauman, Hampton Wick; j England 1 i Application October 4, 1930, serial 'N0..4s6,47s,

and in Great Britain November 15, 19 29v 2 Claims. (Cl. 201.11)

The invention refers to hatchways through which dishes and the like are served from the rooms where they are prepared to the rooms where they are consumed and has for its object 5 the prevention of cookery smells, steam, noise and the like penetrating from the'former into the latter rooms. t

. -Hat chways are very generally adopted in mansions, restaurants, hotels and the like for the'purpose of, shortening thetime' of conveying courses or dishes from kitchens to dining rooms, particularly where these are situated on'the same floor and only separated by one or two easily pierced walls, so that without a hatchwaythe trays would have to be carried around and along one or more passages. Hitherto such hatchways suffered from the drawback that during use the hatchway aperture stood open, sometimes even disclosing a vista of the kitchen and inall cases merely one dividing wall remained interposed between kitchen and dining-room during use thus allowing the smells and noises to pervade the eating rooms. Y

The invention broadly consists in providing interposed independent of whether the. hatchway stands open at the kitchen side or on the dining room side, and other means for the same purpose hereafter described. The preferred con-v struction to' perform this automatically is described and shown in the annexed drawings of which: 7 I

Fig. 1 is a sectional elevation with a portion of the wall broken away; I Fig. 2 is a sectional elevation with the drawer partly pulled out.

Fig. 3 is a front elevation with drawer closed. Fig. 4 is a front elevation with drawer open. Fig. 5 is a plan showing connecting wires. In the dividing wall e between kitchen and din- .ing room is cut a square or like aperture which is lined with a fixed frame V to receive a movable drawer W. A pair of outwardly swinging doors or flaps a are hinged to the frame at each side thereof, and related doors of the respective pairs are connected one with the other by a wire 0 extending over guide sheaves'r the ends of the wires beingattached to the doors short distances from their hinges, so that when either door-of a pair is opened the related door of the other pair necessarily is closed. Preferably interposed in each wire 0 is a spring m to effect cushioning of the doors when they are swung outward. V The drawer W is supported on a pair of horizontal rods g one at either side thereof suitably access of heat. in the lower tier.

simple means for keeping always at least two walls I its free edge with a strip s to overlie the free.

fixed to the frame, the drawer carrying tubes 7h suitably secured thereto as ati and slidably en-, gagedon said rods. The drawer-whichmay beof any convenient shape may advantageously bev divided into sev- 0,

'eral tiers or'compartments for instance: a lower or cold compartment d and an'upper or hot compartment c and in this case a hot plate 1 of copper or the like is provided to form the bot-.

tom of the hot compartment, and electric ele-j- I ments may be arranged underneath this plate in known manner for the purpose of creating or maintaining a certain desired temperature. The walls of the drawer or moving tray may be of metal or metal lined Z and are packed with asbestos 7c or any preferred material of low thermic conductivity and an extra thick layer thereof is arranged beneath the heating elements so as to prevent loss of heat to the upper and The electric heater or heaters 1; may receive current by a contact spring rubbing on a metal bar fixed on each side of the frame,'when these bars are broughtinto' circuit with a source of current by a switch (not shown) placedat the side of the drawer. e

The drawer'is' provided with top and bottom 'fiapscf, (1', respectively, ateach end thereof controlling access to the respective compartments. 0 and d, said flaps being mounted for either swinging or'sliding movement to open and closed positions. Handles j areprovided on the flaps for facility in opening and closing the same and for sliding the drawer into and out of the frame awhile pads q of suitable material are provided on the drawer sides to deaden anysound which otherwise might result from sliding the same'into and from said frame. Moreover, one of the doors a of each pair preferably is provided along edge of the other door of tl1e..-pair when said doors are closed to provide for the effective sealing of the joint between the edges'of the doors of each pair. i

The length of the drawer W isonly slightly less thanthe distance between the doors a at either side of the wall e when said doors are closed.) Thus, it follows that the doors or flaps of the drawer must be closed after the drawer is pushed into the hatchway-from either side thereof to permit closing of the doors a at thatside of thehatchway'and opening of the doors a at the'opposite side thereof. Consequently it follows, due to the further fact. that the doors a at either side of the-hatchway cannot be opened llo drawer.

without closing the doors a at the other side thereof, or unless the doors a at the other side thereof are closed, that a barrier always exists preventing the directpassage of noise, fumes or the like from one side to the other side of the wall through the'hatchway.

In the use of the device the doors a at one side of the hatchway are opened to permit the drawer W to be partly withdrawn if desired. The

flaps or doors at the thus exposed end of the drawer then are opened to permit the desired dishes or other articles to be placed within the The drawer flaps or doors then are closed and, if the drawer was partly withdrawn from the hatchway, it is pushed back into the same. The doors a then are closed to permit the doors a at the other side of the hatchway to be opened, or closing of the first mentioned doors a may be effected by opening of the doors a at the other side of the hatchway. In either event opening of the latter doors exposes the other end of the drawer so that the same may be withdrawn and its contents removed by openingthe flaps or doors at the second end thereof.

'It is obvious that other means than those shown in' the example illustrated may be substituted for ensuring the closing of the kitchen hatchdoor ere the dining room hatch-door: can'be opened, without deviating from the invention. For cases where kitchen andv dining room are not directly adjacent and the drawer may have to travel a long path, not necessarily straight, the construction may be adapted without abandoning its characteristic features.

What I claim is:-

1. In combination with means having a passageway formed .therethrough, an outwardly opening door at each end, of said passageway, and means connecting said doors together so that when" either door is fully open, the other door must be closed and whereby, when either door is open, opening of the closed door effects closing of the open door.

2. In combination with a wall having an opening formed therethrough, an outwardly swinging door at each end of said opening, means connecting said doors together so that when either of the same is fully open the other must be closed and whereby, when either door is open, opening of the closed door efiects closing of the open door, a receptacle slidable within said opening, and corresponding substantially :in cross section'- al area to the cross sectional area of the opening, and doors at the ends of said receptacle, said receptacle approximating in length (the distance between said first mentioned doors when the latter are closed whereby the doors of said receptacle must be closed to permit opening'and closing of the said first mentioned doors.-

KARL OSTEN SCHAUMAN. 

